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THE FIRST COLLECTIONMaterial Design for Bootstrap is a free UI kit offering 700+ components, themes, and templates for building responsive, mobile-first websites. Available for jQuery, Angular, React, and Vue under MIT license.
Mirotone React is a component library for the Mirotone Design System, providing a set of React components and utilities to accelerate development for Miro.
Skeleton is an adaptive design system built on Tailwind CSS. It provides turnkey components for popular web frameworks, along with documentation, a theme generator, and community channels.
mo · js is a fast, retina-ready, modular JavaScript motion graphics library for the web. It offers a declarative API with built-in components like Html, Shape, Swirl, Burst, and Stagger for creating delightful web animations.
A curated English-language collection of bookmarks, resources, articles, and tools about design systems for developers, covering design tools, design tokens, pattern libraries, component testing, books, and talks.
RailsOrg is an organizational structure management model designed for SaaS multi-tenant environments, providing a classic OA department management design.
Welcome UI is the customizable design system open-sourced by Welcome to the Jungle (@wttj). Built with React, TypeScript, Tailwind CSS and Ariakit, it collects the core components needed to build a delightful web application, with detailed documentation in the library README.
The System Design Primer is an open-source guide for learning scalable architecture and preparing for system design interviews, featuring organized resources, solved exercises, and Anki flashcards.
Taste Skill is a set of MIT-licensed Agent Skills that help AI coding agents produce more polished, less generic frontends, plus image-generation skills for design references and brand kits.
Blueprint is a React-based UI toolkit optimized for building complex, data-dense web interfaces for desktop applications.
tldraw is an open-source React SDK for building infinite canvas apps, offering drawing/diagramming tools, self-hostable multiplayer sync, custom shapes/tools, and AI integration starter kits.
Webstudio is an open-source visual development platform and website builder described as a Webflow alternative. It connects to any headless CMS, supports all CSS properties, and can be hosted anywhere, including via its hosted version.
Materialize is a modern CSS framework based on Material Design principles, providing a set of tools to create responsive and visually consistent user interfaces.
Bulma is a modern, Flexbox-based CSS framework distributed as a single CSS file with no JavaScript. It offers Sass sources for variable customization and works with any frontend stack.
OpenCosmos is an open-source creative platform and design system ecosystem built on human-centered principles. It includes a portfolio site, community platform, AI-powered investment app, and a personal OS concept, all unified by the OpenCosmos/UI component library.
